#include <myhead.h>
//typedef struct sockaddr_in addr_in_t;
//typedef struct sockaddr addr_t;      
//typedef struct sockaddr_un addr_un_t;
struct login
{
	char name[20];
	char password[20];
};
struct Plink
{
	union
	{
		int len;
		struct login loginn;
	};
	struct Plink *Next;
};
//遍历存储至链表              
struct Plink*my_plink(FILE*F);
//遍历查找
int my_login(struct Plink*,struct login);
